. campaignneed light and sound. >> ladies and gentlemen, plee welcome the next president of the united states! >> keep it up, keep it up. >> now kill it, kill it. >> if we fl, the message stays here with 2,000 or 3,000 people in cleveland, ohio. the goal is to make sure it translates to as many folks as possible. >> ritteronitors the events as they happen. >> hey, will, you're live on all the cables. can i get more hand signs to that crowd behind the gov? >> setting up one event may take weeks and yet -- >> it may last ten minutes. >> then they do it again. 1:00, 2:00 in the morning, we'll do it again. it heads to the next truck and it heads to the next site. >> do you ever sleep or smell bad? >> we went three days with no sleep, no showers. >> always with the fear that one simple mistake, even a poorly chosen image can dtroy a campaign. ask michael did you cactus. >diddukakis.>> he didn't want ta helmet. he understood that that w wasn't going to be a distinguish television st. >> consultant stev murphy worked with dukis. the answer came back, we've arranged for you to ride in a tank, theyon'